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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/image_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="确认"
android:layout_gravity="center"/>
</LinearLayout>
package com.example.uiwidgettest2;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.*;
public class edittextActivity extends Activity implements View.OnClickListener{
private ImageView iv;
private Button btn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.edittext);
btn = (Button)findViewById(R.id.button);
iv = (ImageView)findViewById(R.id.image_view);
btn.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.button:
iv.setImageResource(R.drawable.dst);
break;
default:
break;
}
}
}
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原文地址:http://www.cnblogs.com/xkck/p/5227604.html